Explain the steps of converting food into energy, Biology

Assignment Help:

Explain the steps of converting food into energy.

There are four steps to convert food into energy:

a) Ingestion, mastication and swallowing : Ingestion or taking in of food and mastication are done by mouth and teeth with the help of the tongue. The pharynx and oesophagus help in swallowing.

b) Digestion : Takes place in the stomach and upper part of the small intestine.

c) Absorption : Food is absorbed in small intestine. Water is absorbed in the large intestine.

d) Excretion : Large intestine helps in excretion of residue in the form of faeces or stool.

Additional organs help in the process of digestion : Salivary glands supply saliva. Liver supplies bile. Bile salts play important role in fat digestion. Pancreas secretes insulin from islets of langerhans. Insulin helps the tissues to use sugar for energy.

 


Related Discussions:- Explain the steps of converting food into energy

Plant biodiversity, discuss why obelia is considered to be a special organi...

discuss why obelia is considered to be a special organism in zoology

Microbiology, different applications of microbiology

different applications of microbiology

Peroxisome and lysosome, e use itwhat is difference between peroxisme and l...

e use itwhat is difference between peroxisme and lysosome what is function of it and where w

Light and heavy soils-physical properties of soil, Light and Heavy Soils ...

Light and Heavy Soils The presence of silt and especially clay in a soil imparts to it a fine texture, and a slow water and air movement. Such a soil is highly plastic becoming

Consequences of population growth, T he effects of unlimited population gro...

T he effects of unlimited population growth are as follows: 1.         Increase in unemployment. 2.          Low per capita income. 3.         Low living standard

Foraminiferans - protozoan, Foraminiferans - Protozoan Foraminiferans ...

Foraminiferans - Protozoan Foraminiferans are largely benthic marine species. They have multi chambered calcareous tests or shells with numerous pores, hence the name foramini

Male reproductive disorders-absence of vesicular glands, Absence of vesicul...

Absence of vesicular glands In some bulls the vesicular glands are either absent or hypoplastic also sometimes accompanied by poorly developed ampullae. A characteristic sympt

Explain about the serum vitamin b12 assay, Explain about the Serum vitamin ...

Explain about the Serum vitamin B12 assay? Serum vitamin B 12 assay: The vitamin B 12 content of serum can be determined.  A serum level of 12 deficiency.

Why are herbivores considered similar to predators, (a) Why are herbivores ...

(a) Why are herbivores considered similar to predators in the ecological context Describe? (b)   Differentiate among the following interspecific interactions  in a population :

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd